Erythritol is a natural calorie-free sugar alcohol, made from fermented natural sugars in corn. It has zero glycemic index which does not spike your blood sugar when consumed. One advantage of erythritol is that it does not cause tooth decay. This is the easiest sugar alcohol to digest. According to FDA, it can also add bulk or texture, retain moisture and prevent browning of the product. 

• Appearance: White to off-white crystals or crystalline powder
  
• Solubility: Soluble in water
  
• Stability: Stable. Incompatible with strong oxidizing agents.
  
• Sweetness compared to sugar: 0.6-0.8